Amphibious multifunctional vehicle

Abstract

The present invention discloses an amphibious multifunctional vehicle, comprising a vehicle body and four wheels; a power and control center is disposed on the top of the vehicle body, the power and control center being connected to actuators via wires; a foam is disposed on the lower portion of the vehicle body; a fixed frame is connected to the vehicle body at a position corresponding to each wheel, the fixed frame being connected to a sleeve, the sleeve being movably connected to the wheel outside, and a transmission mechanism disposed within the sleeve; a first DC reduction motor is disposed on the fixed frame to drive the wheel rotation; a plurality of blades are disposed on the outer sides of the wheels, the rear ends of the blades having connecting rods, the portions of the connecting rods near the rear ends being hinged to the hinged portion of the transmission mechanism; a second DC reduction motor is disposed on the fixed frame to drive the transmission mechanism to rotate circumferentially along the sleeve; the axial inward and outward movement of the transmission mechanism can achieve synchronous expansion or folding of the connecting rods and blades. The amphibious multifunctional vehicle designed by the present invention can travel normally on water and on land, and is suitable for the needs of some special operations.

Description

Technical Field

[0001] The present invention relates to a special operation vehicle, in particular to an amphibious multifunctional vehicle. Background Art

[0002] Vehicles are a common means of land transportation in people's lives. For some vehicles that need to complete special operations, they sometimes need to operate on water. Therefore, it is necessary to design a multi-functional amphibious vehicle. Summary of the Invention

[0003] In view of the above problems, the present invention aims to provide an amphibious multi-functional vehicle that can travel normally on water and land and is suitable for the needs of some special operations.

[0004] The technical solution of the present invention is:

[0005] A multifunctional amphibious vehicle comprises a body and four wheels mounted on the body; an energy and control center is mounted on the top of the body to provide power and algorithmic decision-making for various actuators on the body, the energy and control center being connected to the actuators on the body via wires; foam is mounted on the lower portion of the body; a fixed frame is connected to the body at a position corresponding to each wheel, a sleeve is fixedly connected to the fixed frame horizontally, the wheel is movably connected to the outside of the sleeve, and a transmission mechanism capable of axial movement and circumferential rotation is disposed within the sleeve; a first DC reduction motor is mounted on the fixed frame to drive the wheel to rotate relative to the sleeve; a plurality of blades are radially distributed and spaced apart along the circumference on the outside of the wheel, the rear ends of the blades having connecting rods, the portion of the connecting rods near the rear ends being hinged to the hinged portion of the transmission mechanism; a second DC reduction motor is mounted on the fixed frame to drive the transmission mechanism to rotate circumferentially along the sleeve, and the axial inward and outward movement of the transmission mechanism can achieve synchronous expansion or folding of the connecting rods and blades.

[0006] Preferably, the first DC reduction motor drives the wheel to rotate through the first gear set, the first gear set includes gear 1 and gear 2 that are meshed with each other, the gear 1 is driven by the first DC reduction motor, and the gear 2 is coaxially fixed to the wheel, and the first DC reduction motor drives the wheel to rotate through the meshing of gear 1 and gear 2.

[0007] Preferably, the outer end of the sleeve extends axially to form a retaining ring; the transmission mechanism includes a piston shaft arranged in the sleeve, a screw connected to the piston shaft through a coupling, and a stepping motor that drives the screw to rotate, and when the stepping motor stops running, its body and the screw are self-locking; a spring mounting cavity is provided in the middle of the front end face of the piston shaft, a compression spring is provided in the spring mounting cavity, the inner end of the compression spring is connected to the bottom of the spring mounting cavity, and the outer end of the compression spring is connected to a baffle; the hinge part is provided around the mounting cavity; the connecting rod of each blade is connected to the retaining ring at the outside of the hinge part, and the tail end of the connecting rod of each blade is connected to the outside of the baffle to form a dynamic fit relationship.

[0008] Preferably, a second gear set is provided between the second DC reduction motor and the transmission mechanism, the second gear set includes gear three and gear four that mesh with each other, the second DC reduction motor is coaxially connected to gear four, and the stepper motor of the transmission mechanism is fixedly connected to gear three; the second DC reduction motor drives the transmission mechanism in the sleeve to rotate through the meshing rotation of gear four and gear three.

[0009] Preferably, an inwardly inclined notch area is provided between the spring installation cavity at the front end of the piston shaft and the end surface of the piston shaft, so as to facilitate the tail end of the connecting rod to smoothly enter the sleeve during the rotation process.

[0010] Preferably, a retaining ring is provided between the second gear and the sleeve, and between the fixing frame and the sleeve.

[0011] Preferably, a limiting ring for limiting the installation of the wheel extends radially outward from the outer end of the sleeve.

[0012] Preferably, the sleeve is made of polytetrafluoroethylene.

[0013] When used on land, the stepper motor drives the lead screw to retract and retreat, and the piston shaft, connecting rod and blades retreat synchronously with the lead screw. Due to the limiting effect of the retaining ring, the connecting rod will rotate around the hinge when it retracts. During this process, the rear end of the connecting rod will squeeze the baffle to further compress the compression spring and enter the spring mounting cavity. This process continues until the height of the blade is lower than the height of the wheel tread so that the wheel tread is completely on the ground. At this time, the first DC reduction motor can drive the wheel to rotate through the first gear set, so that the vehicle can be used on land.

[0014] When the vehicle is to be used on water, the stepper motor drives the lead screw outward, and the piston shaft follows the lead screw and moves outward synchronously. As the connecting rod moves outward, the compression spring's return force pushes the baffle plate outward relative to the sleeve. The baffle plate's outward movement causes the connecting rod to cling to the retaining ring and rotate in the opposite direction around the hinge to expand, gradually raising the blade height above the wheel tread. This process continues until each connecting rod is adjusted to a vertical position. At this point, the second DC reduction motor drives gear four, which in turn drives gear three and the stepper motor to rotate synchronously. The self-locking function of the stepper motor and lead screw causes the lead screw, piston shaft, and blades to rotate synchronously, achieving surface propulsion and enabling the vehicle to be used on water.

[0015] In summary, the present invention can travel normally on land and water and can complete some special tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0018] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0019] Figure 4 Schematic diagram of the connection structure between the wheel and the gear set in the present invention;

[0020] Figure 5 for Figure 4 Structural diagram from another perspective;

[0021] Figure 6 for Figure 4 Left view of;

[0022] Figure 7 It is a partial cross-sectional view of the wheel when the blades are folded in the present invention;

[0023] Figure 8 It is a partial enlarged view of point C in the present invention;

[0024] Among them: 1—body; 2—wheel; 3—energy and control center; 4—wire; 5—foam; 6—fixing frame; 7—sleeve; 8—first DC reduction motor; 9—connecting rod; 10—blade; 11—hinge; 12—transmission mechanism; 13—retaining ring; 14—second DC reduction motor; 15—stepping motor; 16—first gear set; 17—gear one; 18—gear two; 19—second gear set; 20—gear three; 21—gear four; 22—screw rod; 23—piston shaft; 24—coupling; 25—spring mounting cavity; 26—compression spring; 27—baffle; 28—notch area; 29—retaining ring; 30—limiting ring. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 8 As shown, the present invention provides an amphibious multi-purpose vehicle, including a body 1 and four wheels 2 arranged on the body 1. The top of the body 1 is provided with an energy and control center 3 for providing power and algorithm decision-making for various executive components on the body 1, wherein the executive components specifically include motors, control circuits, sensors and other components. The energy and control center 3 is connected to the executive components on the body 1 through wires 4. The lower part of the body 1 is provided with foam 5 that can provide buoyancy for the entire vehicle.

[0027] The vehicle body 1 is connected to a fixing frame 6 at a position corresponding to each wheel 2, and a horizontally arranged sleeve 7 is fixedly mounted on the fixing frame 6. The sleeve 7 is movably connected to the wheel 2 on the outside, and a transmission mechanism that can move axially and rotate circumferentially is arranged inside the sleeve 7.

[0028] Here, the sleeve 7 can be made of polytetrafluoroethylene. In addition to providing support for the wheel 2, the low friction coefficient of the sleeve ensures that the wheel 2 can rotate easily around it. A retaining ring 13 extends axially from the outer end of the sleeve 7, and a retaining ring 30 extends radially outward from the outer end of the sleeve 7 for retaining the wheel 2 in position.

[0029] The fixed frame 6 is connected to a first DC reduction motor 8 and a first gear set 16. The first gear set 16 includes a gear 17 and a gear 2 18 that are meshed with each other. The gear 1 17 is driven by the first DC reduction motor 8. The gear 2 18 is coaxially fixed to the wheel 2. The first DC reduction motor 8 drives the wheel 2 to rotate through the meshing of gear 1 17 and gear 2 18.

[0030] The outer side of the wheel 2 is provided with a plurality of blades 10 that are radially spaced and distributed along the circumferential direction. The rear end of the blade 10 is provided with a connecting rod 9. The portion of the connecting rod 9 near the rear end is hinged to the hinge part 11 of the transmission mechanism.

[0031] The transmission mechanism includes a piston shaft 23 disposed within the sleeve 7, a screw 22 connected to the piston shaft via a coupling 24, and a stepper motor 15 that drives the screw. When the stepper motor 15 stops operating, its body and screw 22 are self-locking. A spring mounting cavity 25 is provided in the middle of the front end of the piston shaft 23. A compression spring 26 is disposed within the spring mounting cavity 25. The inner end of the compression spring 26 is connected to the bottom of the spring mounting cavity 25, and the outer end of the compression spring 26 is connected to a baffle 27.

[0032] The hinge portion 11 is provided around the spring mounting cavity 25; the connecting rod 9 of each blade 10 is connected to the retaining ring 13 at the outside of the hinge portion, and the tail end of the connecting rod 9 of each blade 10 is connected to the outside of the baffle 27 to form a dynamic fit relationship.

[0033] The fixed frame 6 is connected to a second DC reduction motor 14 and a second gear set 19 that drive the transmission mechanism. The second gear set 19 includes a gear 3 20 and a gear 4 21 that mesh with each other. The second DC reduction motor 14 is connected to the gear 4 21, and the gear 3 20 is fixedly connected to the stepper motor 15 of the transmission mechanism.

[0034] The center of the gear 3 20, the piston shaft 23, and the screw rod 22 are kept coaxially arranged.

[0035] The first DC reduction motor 8 and the second DC reduction motor 14 are both powered by the energy and control center 3 , and the stepper motor 15 is provided with an independent power supply.

[0036] In this figure, the number of blades is four, but in practice it can be set to three or more as needed.

[0037] Preferably, an inwardly inclined notch area 28 is provided between the spring installation cavity 25 at the front end of the piston shaft 23 and the end surface of the piston shaft 23 to facilitate smooth entry of the tail end of the connecting rod 9 into the sleeve 7 during rotation.

[0038] Preferably, a retaining ring 29 is provided between the gear 2 18 and the sleeve 7, and between the fixing frame 6 and the sleeve 7. The cooperation between the retaining ring 29 and the limiting ring 30 ensures that the wheel 2 and the gear 2 18 are reliably installed.

[0039] When it is necessary to travel on land, the stepper motor 15 is controlled to start, driving the screw rod 22, the piston shaft 23 and the blade 10 to move inward along the axial direction synchronously. Due to the limiting effect of the retaining ring 13, the connecting rod 9 of the blade 10 will rotate around the hinge part 11 during the inward movement. During this process, the rear end of the connecting rod 9 will squeeze the baffle 27 to further compress the compression spring 26 and enter the spring installation cavity 25. This process continues until the height of the blade 10 is lower than the tread height of the wheel 2, so that the tread of the wheel 2 is completely on the ground, and the blade 10 is folded to achieve the desired effect. Figure 7 The stepper motor 15 then stops running and self-locks with the lead screw 22. Simultaneously, the energy and control center 3 controls the first DC reduction motor 8 to start. The first DC reduction motor 8 drives the wheels 2 to rotate through the meshing of gear 1 17 and gear 2 18, thus achieving the function of normal driving on land.

[0040] When it is necessary to travel on water, the foam 5 provides buoyancy for the entire vehicle body 1, so that the vehicle body 1 remains in a floating state, and the stepper motor 15 is controlled to start, driving the screw rod 22, the piston shaft 23 and the blade 10 to move outward synchronously along the axial direction. Here, due to the restoring force of the compression spring 26, it will push the baffle 27 to move outward relative to the sleeve 7, and the outward movement of the baffle 27 will make the connecting rod 9 close to the baffle ring 13 and rotate in the opposite direction around the hinge 11 to unfold, so that the height of the blade 10 gradually becomes higher than the tread height of the wheel 2. This process continues until each connecting rod 9 is adjusted to a vertical state. At this time, the blade 10 remains in an unfolded state under the joint action of the baffle ring 13, the hinge 11, the baffle 27 and the compression spring 26, achieving the following effect. Figure 1 The status shown.

[0041] Then the stepper motor 15 stops running and realizes self-locking with the screw rod 22, and controls the second DC reduction motor 14 to start through the energy and control center 3. The second DC reduction motor 14 rotates through the gear four 21, thereby driving the gear three 20 and the stepper motor 15 to rotate synchronously. The self-locking of the stepper motor 15 and the screw rod 22 is utilized to make the screw rod 22, the piston shaft 23, and each blade 10 rotate synchronously to realize water surface propulsion, thereby realizing the function of the present invention of traveling on water.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the invention. Any simple modification, equivalent change or modification made to the above embodiment based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An amphibious multifunctional vehicle, comprising a vehicle body (1) and four wheels (2) arranged on the vehicle body, characterized in that: The top of the vehicle body (1) is provided with an energy and control center (3) for providing power and algorithm decision-making for each executive component on the vehicle body (1), and the energy and control center (3) is connected to the executive components on the vehicle body (1) through a wire (4); the lower part of the vehicle body (1) is provided with foam (5); the vehicle body (1) is connected to a fixing frame (6) at a position corresponding to each wheel (2), and a sleeve (7) is fixedly connected to the fixing frame (6) horizontally, and the sleeve (7) is movably connected to the wheel (2) on the outside, and a sleeve (7) is provided inside the sleeve (7) that can be moved along the A transmission mechanism for axial movement and circumferential rotation; a first DC reduction motor (8) for driving the wheel (2) to rotate relative to the sleeve (7) is provided on the fixed frame (6); a plurality of blades (10) are provided on the outside of the wheel (2) and are radially spaced along the circumferential direction, and the rear end of the blade (10) is provided with a connecting rod (9), and the portion of the connecting rod (9) near the rear end is hinged to the hinge part (11) of the transmission mechanism; a second DC reduction motor (14) for driving the transmission mechanism to rotate along the circumferential direction of the sleeve (7) is provided on the fixed frame (6), and the The transmission mechanism can realize the synchronous expansion or folding of each connecting rod (9) and blade (10) by axially moving inward and outward; the outer end of the sleeve (7) extends axially to form a retaining ring (13); the transmission mechanism includes a piston shaft (23) arranged in the sleeve (7), a screw rod (22) connected to the piston shaft (23) through a coupling (24) and a stepping motor (15) for driving the screw rod to rotate, and when the stepping motor (15) stops running, its body and the screw rod (22) are self-locking; a spring is provided in the middle of the front end surface of the piston shaft (23) The spring mounting cavity (25) is provided with a compression spring (26), the inner end of the compression spring (26) is connected to the bottom of the spring mounting cavity (25), and the outer end of the compression spring (26) is connected to a baffle (27); the hinge portion (11) is provided around the spring mounting cavity (25); the connecting rod (9) of each blade (10) is connected to the baffle ring (13) at the outer side of the hinge portion, and the tail end of the connecting rod (9) of each blade (10) is connected to the outer side of the baffle (27) to form a dynamic fit relationship.

2. The amphibious multi-purpose vehicle according to claim 1, characterized in that: The first DC reduction motor (8) drives the wheel (2) to rotate via a first gear set (16). The first gear set (16) includes a gear 1 (17) and a gear 2 (18) that mesh with each other. The gear 1 (17) is driven by the first DC reduction motor (8). The gear 2 (18) is coaxially fixed to the wheel (2). The first DC reduction motor (8) drives the wheel (2) to rotate via the meshing of the gear 1 (17) and the gear 2 (18).

3. The amphibious multi-purpose vehicle according to claim 1, characterized in that: A second gear set (19) is provided between the second DC reduction motor (14) and the transmission mechanism. The second gear set (19) includes a gear three (20) and a gear four (21) that mesh with each other. The second DC reduction motor (14) is coaxially connected to the gear four (21). The stepper motor (15) of the transmission mechanism is fixedly connected to the gear three (20). The second DC reduction motor (14) drives the transmission mechanism in the sleeve (7) to rotate through the meshing rotation of the gear four (21) and the gear three (20).

4. An amphibious multi-purpose vehicle according to claim 1 or 3, characterized in that: An inwardly inclined notch area (28) is provided between the spring mounting cavity (25) at the front end of the piston shaft (23) and the end surface of the piston shaft (23), so as to facilitate the tail end of the connecting rod (9) to smoothly enter the sleeve (7) during the rotation process.

5. The amphibious multi-purpose vehicle according to any one of claims 1 to 3, characterized in that: A retaining ring (29) is provided between the second gear (18) and the sleeve (7), and between the fixing frame (6) and the sleeve (7).

6. An amphibious multi-purpose vehicle according to any one of claims 1 to 3, characterized in that: The outer end of the sleeve (7) extends radially outward to form a limiting ring (30) for limiting the installation of the wheel (2).

7. The amphibious multi-purpose vehicle according to any one of claims 1 to 3, characterized in that: The material of the sleeve (7) is polytetrafluoroethylene.

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